Syringe



March 11, 1952 A. R. Gow ET AL SYRINGE Filed June 13, 1947 Patented Mar. 11, 1952 SYRINGE Arthur R. Gow, Hamden, and Charles T. Manville, Woodbury, Conn., assignors to The Seamless Rubber Company, New Haven, Conn., a corporation of Connecticut Application June 13, 1947, seriai No. 754,514

10 Claims.

class which can be packed in a small space, this being of advantage in merchandising the article and in the carrying of the article by the uger in traveling.

Another object is to provide an article which, in being carried about, as in traveling, may be filled with liquid and can be quickly readied for use in a convenient manner.

Another object is to furnish an article of this kind in which manipulation by the user is easy and convenient.

In the accompanying drawing:

Fig. 1 is an elevation of a syringe embodying the invention, the same being in convenient form for transportation, the douche pipe being extended into the interior of the bulb;

Fig. 2 is an end View of the article as shown in Fig. 1;

Fig. 3 is an enlarged section on line 3-3 of Fig. l; l

Fig. 4 is a view similar to Fig. 3, but showing the douche pipe reversed so as to extend outwardly, the outer end portion of the douche pipe being broken away;

Fig. 5 is an exploded sectional view showing the discharge end of the bulb and the bushing or nipple which receives the douche pipe; and

Fig. 6 is an external view of a portion of the douche pipe.

In the article shown in the drawing for purposes of illustration, the body of the syringe is in the form of a compressible elastic bulb of round cross section having at one end a filling and discharging opening with which is associated a shield portion of soft rubber integral with the soft rubber bulb. That portion of the body upon which the shield is provided receives, in a detachable manner, a bushing or nipple which is used for securing in place the douche pipe, the latter, as usual, being constructed of hard rubber. The douche pipe can be secured in a position in which the pipe extends into the interior of the bulb, as shown in Fig. 3, under which conditions a cap is placed over the butt end of the douche pipe, as hereinafter described; or the douche pipe may be secured in a position in which the pipe extends 2 outwardly, as shown in Fig. 4, which is the position for use.

In the drawing, the body of the syringe is generally indicated at IU, the same comprising, respectively, bulb and shield portions II and I2. The discharge portion of the body is indicated at I3, the bushing at I4, the douche pipe at I5. and the cap, previously mentioned, at |61. The butt end portion of the douche pipe is indicated at II, and the discharge end at I8.

The body I I is of round cross section, and the end opposite the discharge I3 has a flat or planar wall I9 enabling the syringe to be stood upright on a table or other support. From the closed end, the body II increases gradually in diameter up to a certain region and then decreases on a curve to provide a bulb which, in this particular case, has the shape of a vase or jar. The shield portion I2 projects from the bulb, and in this form the exterior of the shield is on a curve, the diameter increasing from the free end of the shield to the zone of juncture `withthe bulb portion of the body. The discharge portion I3 provided in the shield portion of the article has generally the character of a bore provided with portions of different diameters, this part of they articlewbeing adapted to be distended so as to receive and hold firmly the bushing or liner I4. The bushing I4 may be made of hard rubber or other suitable plastic. .Tn the case shown it is made of a plastic other than rubber. It is characterized by a cylindrical ringlike body I 9a having a smooth outer surface and provided at one end with an integral rounded bead 2i), this end being the inner end with relation to the discharge outlet of the syringe. `The body I9at is received in a portion 2| of discharge opening I3, and the bead 2U is received in a correspondingly shaped groove 22, and when the bushing is installed its inner end leaves uncovered an annular space 2E provided in the discharge portion of the body. The inner end of the bushing is provided with an inturned flange 24 against which is placed an elastic washer 25, the bushing being of cup shape to receive this washer. Forwardly of this washer (Fig. L5) the bushing is provided with interior screw threads 2S. The forward end of the bushing, when the latter is in the assembled position, is overlain by a shoulder 27 integral with the syringe body. By distending the open end of the syringe body, the bushing can be inserted into place, and when in place the compressive action of the rubber in the shield portion of the body will hold the bushing very firmly against displacement.

The douche pipe I5 has an interior` bore 28 which in this form extends from the butt end of the pipe to a point near the discharge of the pipe. Provided upon the pipe at some distance from the butt end is an integral enlargement 29 provided upon its periphery with screw threads 39 adapted to engage the threads of the bushing. The enlargement' 29' isV shaped at the respective ends in a manner to provide shoulders adapted-v to engage the washer for the purpose of preventing leakage between the exterior of the pip'e` and the interior of the bushing. From-What has. been said above, it will be apparent that thereV is no leakage between the exterior -of the'bushing and the interior of the rubber body. Forwardly of the enlargement 29 the exterior-of` thedouche pipe is smooth (Fig. 4), and rearwardly of the enlargement there is a pipeportion. ot some-- what greater diameter than the main portion of the pipe, which portion of greater diameter is. provided with coarse external screw threads 3| adaptedtoibe engaged by corresponding threads formed on the interior of the cap IS.

The cap ,I 6'v is .av cup-shapedV cap, and` itslthreads are formedpupon its-cylindricalwall, and, whenv placed :on the-pipe Y in. the position 'shownl in: Eig. 3, litsz'bodyfextends lover. thev openv butt end of .the pipe andi isY pressed :against it in: a manner to prevent liquid- Vwithin-l the pipe from having egress? the capbody being rmly pressed against the pipe end. For"- purposes of convenient manipulation, the cap II5f-hasits1periphery suitablyfroughened, and in the form shown the roughening is providedrby forming groovesl |63 uponr the cap;

In :the formv shown, the discharge endportion I8I of the pipe-'includes a bulbous nozzle member I8- screwedtonto a pipe extension 32 that is of reduced-diameter; the pipe extension vbeing* providedwith v'a Vbore 33. in communicationwithmthe bore28; the bore 33 being closedV at. the outer end, andthe extension having a number of small side openingsll. The discharge. from the member I 8 is :through van end opening 35 provided thereinv The portion of--the.pipe which projects into tl1e-interi0rV ofthe. syringe body, asV shown in Fig` 3,maybe straight, as in the .formshown, or itmay be bent, if desired, so. as to be disposed atl a1 slight angle. to the axis of thesyringefbody.

In= the use of the syringe,. the parts are in the posi-tionshownin Fig 4, the butt end portion. IT of' thepipe extending intov the bulb portiontoa certain degree,.and the pipe being firmly heldlinthe. discharge end of the syringe body in a'l'eak-prootmanner. The liquid is forced vout byrcompressing. the bulb, and is drawnback into the .bulb by releasing the-pressure. The shield portion I2 is interiorlyv supported by. the pipe and by the bushing-.or liner, and this. shield portion, with its' curved outer surface; acts as a stopmemberto limit the .insertion of the pipe, and' a shoulder portion of the enlargement 29`is intthis position in line with the curved surface ofthe shield or stop so. as to formin eiect a v continuation'thereof, all ofthe exterior surfaces in "this region being smooth and without projections:k

In packing'thearticle, for exampleY in traveling, the douche pipe can be placed in the position'shown-inFig'LB. The 'discharge portion I8 of the douche pipe'is of a diameter such that it can be introducedinto the interior of the bulb. Withthis in view, sufficient clearance is providedibetweenf 'the discharge `end of `the pipe and the bushingl'l. That part' ofthe bushing which.ha'sltl'ie`Y smallest diameter `isthe perforated bottom portion of the bushing that provides the inwardly extending flange 24, and the end of the douche pipe will pass through the opening provided in this part of the bushing. Also it will be noted that in the form shown the discharge end of the douche pipe, in the position of Fig.,3, will'. extend close to the wall I9 of the bulb. Inplacing the pipe in the position shown in Fig. 3, the cap I6 may be screwed onto the butt end of the pipe, and the pipe screwed into the bushing, using the cap as a manipulating member; or the pipe may be screwed into the bushing; using the butt end of the pipe with its coarsenthreads as a manipulating member, the cap being`V applied' afterward. In removing the pipeffrom the position of Fig. 3, the same is screwedoutof its securing socket, making use of the cap I6, or making use of the butt end of-th'e=pipe, whichever is more convenient.

When in the positiorr. of Fig. 3, the article will carry liquid-1in` .a leakproof". manner, the .liquid being introduced through the open end ofthe bulb, andz'the-pipebeing `then screwed intothe positionshown and the cap I5 being used to seal the butt end of the pipe. The bulb may be. in alledcondition. as carried: about,` and can' be quickly readied for use in a convenient manner, inasmuchA as it is only necessary tounscrew the pipe, withdraw it from the receptaclaand place it onthe receptacle in the reversedY position, the cap Iii-being removed before the pipe is reversed. As shown in Fig. 4, the extension on thepipe carrying the` screw threads Vfor. the cap` is of slightly greater diameter than the main portion ofl the pipe, Abut will clear the bushing, and the extension projects to a slight-extentwithin the body of the bulb.

Preferably when the article is in the position shown in Fig. 3, there is only a small clearance between the inneriedge ofthe cap I6 andthe outer edge of the shield, the two being in close proximity to each other;

In the formshown, the bushing is fully covered by the rubber or rubberlike material of the syringe body, so as to be concealed, and in the reversed position of Fig. 3 the extension on the douche pipe extends longitudinally out of the body to a substantial degree, so as to provide for ready application of the closing cap, which will close the pipe.

The article can be readily sterilized, as will be apparent, it being unnecessary'in doing this to remove the bushing or insert, which, for all practical purposes, is a permanent part of the body.

The syringe as herein described comprises a minimumnumber of parts and can be readily packedA in a small space, which is a great convenience, and may be carried about Ywhen filled with liquid', thereby considerably increasing its scope and utility.

l't is a matter of distinct advantage that the article can be filled with liquid before going on a trip so as' to be easily available for use,v and it is also! distinctly advantageous that, as carried about` from place to. place, the article not only takes up' aminimum of' spacebut` is devoid of cumbersome or .projecting parts, andk is compact so as to be convenientlyportable.` Moreover, as traveling equipment the' article has anattra'ctive appearance. Another'advantage arises from `the fact that they wall of the receptacle may `be-oi relatively thick and tough rubbersoi as to possess a high degree of strength. When of such a structure, the receptacle, if subjectedv to f any reasonabl'eamount of'pressure, will offer ample-re- 5. sistance so that rupture, with consequent leakage of liquid, will be avoided.

When the article is being carried about in the closed, lled position, a shoulder on one end cf the enlargement 29, acting as a shut-off valve coacting with the seat provided in the bushing, effectively prevents liquid from leaking out along the external surface of the pipe. In the operative position of the article the shoulder at the opposite end of the enlargement has a similar action. The rubber at the forward end of the shield portion overlying the forward edge or end of the bushing also assists in preventing leakage of liquid. The external bead on the bushing presents a shoulder which assists in positioning the bushing longitudinally with reference to the discharge portion of the bulb body.

With regard to the resistance offered to rupturing strains, it is to be noted that the shape given to the syringe body is such as to be of distinct benet in this connection, the wall being curved transversely of the article and also longitudinally thereof. Furthermore, the article has a flat base adapting it to rest on a table or the like, and when the douche pipe is turned inwardly the center of gravity is quite low so that when placed on a table it is supported in a stable manner.

Various modications and changes in the details may be made without departing from the principles of the invention or the scope of the claims. The illustrated embodiment is by way of example only.

What we claim is:

l. In a syringe such as described, an elastic body having a bulb portion and a shield portion integral with each other, the shield portion being provided with a discharge passage, a bushing mounted in said passage, and a douche pipe adapted to be screwed into said bushing with the pipe in an outwardly projecting position or to be screwed into the bushing with the pipe in an inwardly extending position, and closure means for closing the butt end portion of the pipe to prevent outward leakage of liquid when the pipe is in the inwardly extending position, said pipe having between its ends an enlargement carrying screw threads which engage threads in the bushing in both positions of the pipe, said enlargement on the pipe having a shoulder at one end acting as a sealing member in connection with the bushing in one position of the pip-e and having at the opposite end a shoulder which acts as a sealing member in the other position of the pipe.

2. In a vaginal syringe, an elastic bulb-likeA body adapted to be compressed for causing discharge of liquid and having a discharge portion, a bushing mounted in said portion, and a douche pipe adapted to be screwed into said bushing with the pipe in an outwardly projecting position or to be screwed into the bushing with the pipe in an inwardly extending position and having at its butt end portion provisions for attaching a closing cap, said bushing having associated with its inner or rear end an internal seat of less diameter than the threaded part of the bushing, and said douche pipe carrying integral shouldered valve means of less diameter than the threaded part of the bushing which in the inwardly extending position of the pipe co-acts with said seat in preventing leakage of liquid.

3. In a vaginal syringe, an elastic bulb-like body adapted to be compressed for causing discharge of liquid and having a discharge portion, a bushing mounted in said portion, and a douche pipe adapted to be screwed into said bushing with the pipe in an outwardly projecting position or to be screwed into the bushing with the pipe in an inwardly extending position and having at its butt end portion provisions for attaching a closing cap, said bushing having associated with its inner or rear end an internal seat, and said douche pipe carrying integral shouldered valve means which in the inwardly extending position of the pipe co-acts with said seat in preventing leakage of liquid, said bushing having a forward or outer end terminating short of the forward or outer end of said discharge portion and provided with a forward edge, and said discharge portion overlying said forward edge.

4. In a vaginal syringe, a hollow elastic body adapted to be compressed for causing discharge of liquid and having a discharge portion, a bushing mounted in said discharge portion, and a douche pipe adapted to be screwed into said bushing with the pipe in an outwardly projecting position or to be screwed into the bushing with the pipe in an inwardly extending or reversed position and having at its butt end provisions for holding a closing cap, said bushing having associated with its inner or rear end an internal resilient seat, and the douche pipe carrying shouldered valve means which in the inwardly pro- `iecting position of the pipe co-acts with said seat in preventing leakage of liquid and carrying other shouldered valve means which in the reversed position of the pipe co-acts with said seat in preventing leakage of liquid, said body having at its forward end an integral shield portion with a convex outer surface overlying and extending forwardly beyond the forward edge of said bushing.

5. In a vaginal syringe, a hollow elastic body adapted to be compressed for causing discharge of liquid and having a discharge portion, a bushing mounted in said discharge portion, and a douche pipe adapted to be screwed into said. bushing with the pipe in an outwardly projecting position or to be screwed into the bushing with the `pipe in an inwardly extending or reversed position and having at its butt end provisions for holding a closing cap, said bushing having associated with its inner or rear end an internal resilient seat, and the douche pipe carrying shouldered valve means which in the inwardly projecting position-of the pipe co-acts with said seat in preventing leakage of liquid and carrying other shouldered valve means which in the reversed position of the pipe co-acts with said seat in p-reventing leakage of liquid, said body having at its forward end an integral shield portion with a convex outer surface o-verlying and extending forwardly beyond the forward edge of saidbushing, the two shouldered valve means carried by the pipe comprising shoulders provided at the respective ends of a cylindrical enlargement of the pipe short of its closing-cap-attaching portion, the external surface of which enlargement carries the screw threads by means of which the pipe is screwed into the bushing in the aforesaid positions.

6. In a vaginal syringe, an elastic body comprising a bulb portion and a terminal shield portion formed integrally with each other, the shield portion being of less diameter than the adjacent part of the bulb portion and having a tapering wall increasing in thickness rearwardly from the forward end and having a juncture with the bulb portion creating a shoulder, the shield portion and the forward end of the bulb portion having a longitudinal opening or bore acting as a discharge portion for the body, an internally threadassassin,`

pipeadaptedto be screwed into said liner with the pipe in an outwardly projecting position. or in. an inwardly extending position, the forward end of said shield portion overlying the forward end of said liner so as to conceal the liner and assist in preventing leakage of liquid, said liner having an inwardly extending flange lat its inner or rear end and a washer engaging said ange andV providing an internal seat, said douche pipe carrying shouldered valve means which in the different aforesaid positions of the pipe co-acts with said seat in preventing leakage of liquid.

'7. In a vaginal syringe, an elastic body comprisinga bulb portion and a terminal shield portionformed integrally with eachother, said body having a discharge opening formed partly in the bulb portion and partly in the shield portion, the shield portion having a thin wallat the forward end. of the dischargeopening increasing progressively in thickness and joining the bulb portion by a' junction presenting an external shoulder, a bushing mounted within said discharge opening and having' internal screw threads, said bushing having a forward edge overlain and concealed by the forward edge of said shield portion, and theV bushing also having means intermediate of the length of the discharge opening for preventing longitudinal dislocation of the bushing with respeci; to said opening, and a douche pipe having external screw threads adapting it to be screwed into the bushing either'in an outwardly project ingposition or in an inwardly extending position, said pipe having sealing means cooperating in bcth of said positions with sealing means dis'- posed intermediate the ends of they-bushing to prevent leakage of liquid along the external surface of the pipe.

8. In a vaginal syringe, an elastic bulb-like body adapted to be compressed for causing discharge of liquid and having a discharge portion; a bushing mounted in said portion provided with internal screw threads, said bushing being of less length than said discharge portion and located intermediate of the ends thereof and provided with means for anchoring it in the bulb-like body, and a douche pipe having external screw threads adapting it to be screwed into the bushing either in an outwardly projectingposition or in an inwardly extending position, said pipe having sealing means of less diameter than the threaded' part of said bushing cooperating in both of 'said positions with internal sealing means' provided within the bushing and .disposed intermediate the ends of the bushing to prevent leakage of liquid,V

along the external surface of the pipe.

9. In a vaginalv syringe, a hollow elastic'body adapted to be compressed for causing discharge of liquid and having a discharge portion interiorly threaded and provided intermediate of its ends with an internal forwardly facing seat, and a douche pipe having a series of external threads adjacent the butt end and adapted to be screwed into said discharge portion with the pipe in an outwardly projecting position or an inwardly projecting position, said douche pipe'carrying shoul dered valve means which in the outwardly projecting position of the pipe co-acts with said seat in preventing leakage of liquid and carrying other shoulderedvvalve means which in the reversed position of the pipe co-acts with said seat in preventing leakage of liquid, the two shouldered valve means being located at the respective ends of a cylindrical enlargementfof theA pipe upon the surface of which said pipe threads are provided.`

10. In a vaginal syringe, an elastic bulb-like body adapted to be pressed for causing discharge of liquid and having a discharge-portion, said discharge portion being interiorly threaded and provided between its ends with a forwardly facing internal seat, and a douche pipe having an veX- teriorly threaded portion adapted to beengaged with the threaded discharge portion with the pipe in an outwardly projecting position or inVV an inwardly projecting position, said Vpipe havingv formed at one end of said exteriorly threaded-portion a shoulder providing a sealing-ineans which co-acts with said seat to prevent leakage of liquid when the pipe is in the'inwardly projecting position.

ARTHUR R; GOW. CHARLES T. MANVILLE.

REFERENCES CITEDv The following references are of'record inthe le of this paitent:

UNITED STATES PTENTS 

